: Use a tool like WinRAR or 7-Zip . Right-click the first file ( part1 ) and select "Extract Here." The software will automatically pull data from Part 3 to complete the file.
Because this is a specific part of a RAR archive (Part 3), you cannot open or view its contents individually without having the other associated parts (Part 1, Part 2, etc.) in the same folder. Likely Context #v.jb.n_ModSt_St-ar_TC.part3.rar
Based on the abbreviations in the filename, this file likely relates to: : Modular Statistics or Modeling Studies. : Use a tool like WinRAR or 7-Zip